package com.alinesno.cloud.initializr.starter.gateway.rest.gen;

import java.beans.PropertyEditorSupport;
import java.io.IOException;
import java.util.Date;
import java.util.List;

import javax.servlet.http.HttpServletResponse;

import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;

import com.alinesno.cloud.common.facade.response.AjaxResult;
import com.alinesno.cloud.common.facade.response.HttpStatus;
import com.alinesno.cloud.initializr.starter.codegen.page.PageDomain;
import com.alinesno.cloud.initializr.starter.codegen.page.TableSupport;
import com.alinesno.cloud.initializr.starter.codegen.utils.DateUtils;
import com.alinesno.cloud.rest.gateway.adapter.page.TableDataInfo;
import com.alinesno.cloud.rest.gateway.adapter.utils.StringUtils;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;

//import com.ruoyi.common.constant.HttpStatus;
//import com.ruoyi.common.core.domain.AjaxResult;
//import com.ruoyi.common.core.page.PageDomain;
//import com.ruoyi.common.core.page.TableDataInfo;
//import com.ruoyi.common.core.page.TableSupport;
//import com.ruoyi.common.utils.DateUtils;
//import com.ruoyi.common.utils.StringUtils;
//import com.ruoyi.common.utils.sql.SqlUtil;

/**
 * web层通用数据处理
 * 
 * @author ruoyi
 */
public class GenBaseRest {
	protected final Logger logger = LoggerFactory.getLogger(this.getClass());

	/**
	 * 将前台传递过来的日期格式的字符串，自动转化为Date类型
	 */
	@InitBinder
	public void initBinder(WebDataBinder binder) {
		// Date 类型转换
		binder.registerCustomEditor(Date.class, new PropertyEditorSupport() {
			@Override
			public void setAsText(String text) {
				setValue(DateUtils.parseDate(text));
			}
		});
	}

	/**
	 * 设置请求分页数据
	 */
	protected void startPage() {
		PageDomain pageDomain = TableSupport.buildPageRequest();
		Integer pageNum = pageDomain.getPageNum();
		Integer pageSize = pageDomain.getPageSize();
		if (StringUtils.isNotNull(pageNum) && StringUtils.isNotNull(pageSize)) {
			String orderBy = null ; //SqlUtil.escapeOrderBySql(pageDomain.getOrderBy());
			PageHelper.startPage(pageNum, pageSize, orderBy);
		}
	}

	/**
	 * 设置请求排序数据
	 */
	protected void startOrderBy() {
		PageDomain pageDomain = TableSupport.buildPageRequest();
		if (StringUtils.isNotEmpty(pageDomain.getOrderBy())) {
			String orderBy = null ; //SqlUtil.escapeOrderBySql(pageDomain.getOrderBy());
			PageHelper.orderBy(orderBy);
		}
	}

	/**
	 * 响应请求分页数据
	 */
	@SuppressWarnings({ "rawtypes", "unchecked" })
	protected TableDataInfo getDataTable(List<?> list) {
		TableDataInfo rspData = new TableDataInfo();
		rspData.setCode(HttpStatus.SUCCESS);
		rspData.setMsg("查询成功");
		rspData.setRows(list);
		rspData.setTotal(new PageInfo(list).getTotal());
		return rspData;
	}

	/**
	 * 响应返回结果
	 * 
	 * @param rows 影响行数
	 * @return 操作结果
	 */
	protected AjaxResult toAjax(int rows) {
		return rows > 0 ? AjaxResult.success() : AjaxResult.error();
	}

	/**
	 * 响应返回结果
	 * 
	 * @param result 结果
	 * @return 操作结果
	 */
	protected AjaxResult toAjax(boolean result) {
		return result ? success() : error();
	}

	/**
	 * 返回成功
	 */
	public AjaxResult success() {
		return AjaxResult.success();
	}

	/**
	 * 返回失败消息
	 */
	public AjaxResult error() {
		return AjaxResult.error();
	}

	/**
	 * 返回成功消息
	 */
	public AjaxResult success(String message) {
		return AjaxResult.success(message);
	}

	/**
	 * 返回失败消息
	 */
	public AjaxResult error(String message) {
		return AjaxResult.error(message);
	}

	/**
	 * 页面跳转
	 */
	public String redirect(String url) {
		return StringUtils.format("redirect:{}", url);
	}
	

	/**
	 * 生成zip文件
	 * @param tableName 
	 * @param tableSchema 
	 */
	public void genCode(HttpServletResponse response, byte[] data, String tableSchema, String tableName) throws IOException {
		String fileName = "" ; 
		
		if(StringUtils.isNotEmpty(tableSchema)) {
			fileName += tableSchema + "-" ;
		}
		if(StringUtils.isNotEmpty(tableName)) {
			fileName += tableName + "-"  ; 
		}
		fileName += DateUtils.getTime() ; 
		
		response.reset();
		response.addHeader("Access-Control-Allow-Origin", "*");
		response.addHeader("Access-Control-Expose-Headers", "Content-Disposition");
		response.setHeader("Content-Disposition", "attachment; filename=\""+ fileName +".zip\"");
		response.addHeader("Content-Length", "" + data.length);
		response.setContentType("application/octet-stream; charset=UTF-8");
		IOUtils.write(data, response.getOutputStream());
	}
}
